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<title>About QR Codes</title>
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<h3><center>About QR Codes</center></h3>
<p><b>QRCoder</b> understands how to read two dimensional barcodes, called <em>QR
  Codes</em>. For example, the QR Code below contains a hyperlink to the ZXing Project home page:</p>
<center><p><img src="../images/big-qr.png"></p></center>
<p>You can also represent contact information in a QR Code, and put it on a business card or web
  site. When you scan it, the results screen provides a choice of actions:</p>
<center><p><img src="../images/contact-results-screen.jpg"></p></center>
<p>Besides URLs and contact info, QR Codes can also contain:</p>
<ul>
  <li>Calendar events, which you can add to your Calendar</li>
  <li>Phone numbers, which you can dial</li>
  <li>SMS numbers, which you can text message</li>
  <li>Email addresses, which you can email</li>
  <li>Geographic coordinates, which you can open in Maps</li>
  <li>Plain text, which you can read, then share with a friend</li>
</ul>
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